Service difficulty report · Winglet · Gulstm GIV

Difficulty date
November 3, 2011
Submitted
November 18, 2011
Operation
Air carrier
Aircraft
N763DB
Make and model
Gulstm GIV
Aircraft serial
1114
Part
Winglet
Condition
Corroded
Location
Wing
Part time
8,891 hours
Stage of operation
IN
How discovered
V
Nature of condition
O
Precautionary procedure
K

As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.

What was found

DURING SCHEDULED ACCOMPLISHMENT OF CMP CODES 573013 (LT AND RT WINGLET ATTACH HARDWARE- INSP) CORROSION WAS NOTED IN SEVERAL OF THE HOLE BORES IN THE CENTER OF THE HOLES WHERE THE BUSHINGS DO NOT CONTACT EACH OTHER. MFG IS AWARE OF THIS CONDITION AND THE HOLES WILL BE REWORKED IAW AN EXISTING PROCEDURE. THIS INSP HAS A 12 YEAR INTERVAL AND IT IS CRITICAL THAT THE ENDS OF THE HOLE BORES ARE SEALED CORRECTLY TO AVOID ANY MOISTURE INTRUSION.